As the world’s largest manufacturer of domestic fire safety products, Kidde have been safeguarding people and property from fire and related hazards for nearly a century. Their Firex Mains-powered Heat Alarm (KF3R) can be interlinked with up to 23 other Kidde mains alarms, be they ionisation, optical or heat. Once interlinked, the detection of the relevant danger by an individual unit will sound across all connected alarms. This unit also comes with a Rechargeable Lithium Battery Backup to ensure continued protection during power outages. The KF3R can be used in humid or dusty environments where optical and ionisation smoke alarms are unsuitable, e.g. kitchens, loft spaces, and garages. It is not triggered by cooking steam or fumes, thus avoiding ‘burnt toast’ nuisance alarms. This range needs to be installed by a professionally qualified electrician and complies with UK Building Regulations for new housing and associated standards (Grade D BS 5839, Part 6).

How it works:

Heat alarms are designed to detect increases in the surrounding air’s ambient temperature, not the smoke from a fire. They will sound if they detect temperatures in excess of 58°C.

Can interlink with up to 23 Kidde hard-wired alarms with all alarms sounding if danger is detected

Combined Test/Hush button allows regular testing of alarm function and can be used to temporarily silence nuisance alarms

Auto reset after activation

Tamper-resistant locking device prevents unauthorised removal without the use of a tool